|Publication number||US7979882 B2|
|Application number||US 11/983,643|
|Publication date||Jul 12, 2011|
|Filing date||Nov 9, 2007|
|Priority date||Nov 9, 2006|
|Also published as||EP1921779A2, EP1921779A3, US20080115184|
|Publication number||11983643, 983643, US 7979882 B2, US 7979882B2, US-B2-7979882, US7979882 B2, US7979882B2|
|Inventors||Joon-Young Choi, Jin Park|
|Original Assignee||Samsung Electronics Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Non-Patent Citations (2), Classifications (17), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present application claims the benefit under 35 U.S.C. §119(a) of a Korean Patent Application filed in the Korean Intellectual Property Office on Nov. 9, 2006 and assigned Serial No. 2006-110510, the disclosure of which is incorporated herein by reference.
The present invention relates generally to broadcasting services, and in particular, to an apparatus and method for providing seamless digital broadcasting services economical for the user by interworking between heterogeneous networks.
Digital broadcasting refers to the broadcasting service that provides users with high-definition, high-fidelity and high-quality broadcastings, in replacement of the conventional analog broadcasting. With the recent development of the digital broadcasting and mobile communication technologies, there is an increasing interest in the study for allowing the users to view the digital broadcasting even while traveling by a vehicle or walking.
Such digital broadcasting is serviced by Digital Multimedia Broadcasting (DMB). For example, in South Korea, DMB is classified into satellite DMB which is serviced throughout the country on a charge basis, and terrestrial DMB which is serviced in the capital area including Seoul on a free-of-charge basis. In IEEE 802.16-based Wireless Broadband (WiBro) or Mobile Worldwide Interoperability for Microwave Access (Mobile WiMAX), IEEE 802.11-based Wireless LAN, and 3rd Generation (3G), intensive discussions are being held on Broadcasting/Communication Convergence in which the digital broadcasting services are available over the communication networks, such as Wideband Code Division Multiple Access (WCDMA), Universal Mobile Telecommunications System (UMTS) and High Speed Downlink Packet Access (HSDPA) by the 3rd Generation Partnership Project (3GPP) group, and CDMA 2000, 1x Evolution Data Only (EVDO) and 1x Evolution Data and Voice (EVDV) by the 3rd Generation Partnership Project 2 (3GPP2) group.
Under the assumption that the above heterogeneous networks coexist, consideration is given to the scheme capable of supporting the networks by means of dual-mode terminals, each of which is equipped with separate modems capable of receiving services of the networks. Actually, a product made by realizing DMB and WiBro in a single terminal is under the study.
Therefore, when one terminal receives the digital broadcasting service in the heterogeneous network environment where the multiple networks coexist, it is important for the terminal to know how to access each network and communicate with it in providing effective, economical broadcasting service to the user. In particular, the broadcasting service should be provided such that the user may view all broadcasting program content without missing any, even when a moving terminal can no longer receive the broadcasting service if it enters a no-service area (such as a shadow area) while the user views the broadcasting program.
Nevertheless, conventionally, there is no detailed method in which a moving terminal can seamlessly access the heterogeneous networks and communicate with them at a low price when the moving terminal is disconnected from the terrestrial or satellite DMB network as it enters an area where it cannot receive the digital broadcasting service. In particular, no consideration is given to the method in which even though the terminal receives again the digital broadcasting service as it moves back to the DMB service area after a lapse of a predetermined time, the user can conveniently view his or her missing broadcasting content.
To address the above-discussed deficiencies of the prior art, it is a primary aspect of the present invention to address at least the problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present invention is to provide an apparatus and method capable of effectively receiving a digital broadcasting service with one terminal in an environment where multiple heterogeneous networks coexist.
Another aspect of the present invention is to provide an apparatus and method in which a moving terminal that is disconnected from a network from which it was receiving a digital broadcasting service accesses another heterogeneous network to seamlessly receive the service in an environment where multiple heterogeneous networks coexist.
Another aspect of the present invention is to provide an apparatus and method in which a moving terminal that fails to receive a broadcasting service from an existing DMB network may access a WiBro network to seamlessly receive the service.
Another aspect of the present invention is to provide an apparatus and method in which a moving terminal that fails to receive a broadcasting service from the existing DMB network recognizes a program time period during which it is disconnected from the DMB network to allow the user to view the broadcasting program from the disconnected time when the terminal later re-accesses the WiBro network.
Another aspect of the present invention is to provide an apparatus and method in which, when a moving terminal fails to receive a broadcasting service from the existing DMB network, the terminal allows the user to view all broadcasting program content without missing any, using the program time period during which it was disconnected from the DMB network and the program time period during which it was disconnected from a WiBro network, when the terminal later returns back to the DMB network after accessing the WiBro network.
Another aspect of the present invention is to provide an apparatus and method in which a moving terminal that fails to receive a broadcasting service from the existing DMB network allows the viewer to download the missing partial broadcasting program from a WiBro network when the terminal returns back to the DMB network after receiving the broadcasting service from the WiBro network.
According to one aspect of the present invention, there is provided an apparatus for providing a Digital Multimedia Broadcasting (DMB) service to a terminal communicable with different communication networks. The DMB service apparatus includes a DMB modem for reproducing a broadcasting program received from a DMB network; a Wireless Broadband (WiBro) modem for reproducing the broadcasting program received from a WiBro network; a display unit for displaying the broadcasting program; and a memory for storing therein a part of the broadcasting program that a user has failed to view as the apparatus has failed to receive the program from the DMB network, wherein the missing part of the broadcasting program is downloaded from the WiBro network.
According to another aspect of the present invention, there is provided a method for providing a Digital Multimedia Broadcasting (DMB) service to a terminal communicable with different communication networks. The DMB service method includes receiving a broadcasting program over a DMB network; receiving the broadcasting program over a Wireless Broadband (WiBro) network upon failure to receive the broadcasting program signal from the DMB network; and upon receipt of the broadcasting program signal back from the DMB network, interrupting the broadcasting program received from the WiBro network and receiving the broadcasting program over the DMB network.
Before undertaking the DETAILED DESCRIPTION OF THE INVENTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document: the terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation; the term “or,” is inclusive, meaning and/or; the phrases “associated with” and “associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases.
For a more complete understanding of the present disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts:
The user of the terminal 430 can view the program even over the WiBro network. The user can view the program from the program server 401 through a core network 421, an access control router (ACR) 423, and a base station (BS) 425. To access both the DMB network and the WiBro network, the terminal 430 should be a dual-mode terminal. Therefore, the terminal 430, as it can access both the DMB network and the WiBro network, can view (or receive) the broadcasting program if it can access the base station 425 of the WiBro network even though it cannot receive the program from the DMB network in the poor reception area, like in the shadow area.
As is apparent from the foregoing description, according to the present invention, in the service environment where multiple wireless communication systems coexist, the terminal can receive the seamless broadcasting service. In particular, the moving terminal can receive the broadcasting service over the WiBro network even when it cannot receive the DMB broadcasting signal, so the user can view all broadcasting content without missing them.
Although the present disclosure has been described with an exemplary embodiment, various changes and modifications may be suggested to one skilled in the art. It is intended that the present disclosure encompass such changes and modifications as fall within the scope of the appended claims.
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|1||European Search Report dated Sep. 15, 2010 in connection with European Patent Application No. 07 02 1780.|
|2||Office Action dated Jan. 11, 2010 in connection with Korean Patent Application No. 10-2006-0110510.|
|U.S. Classification||725/62, 379/142.16, 725/73, 725/63, 725/111|
|International Classification||H04N7/00, H04N7/173, H04N7/20, H04M1/56, H04N7/16|
|Cooperative Classification||H04H20/26, H04H60/91, H04H20/57, H04H2201/37, H04H20/24|
|European Classification||H04H20/24, H04H20/26|
|Nov 9, 2007||AS||Assignment|
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHOI, JOON-YOUNG;PARK, JIN;REEL/FRAME:020161/0968
Effective date: 20071109
|Jan 6, 2015||FPAY||Fee payment|
Year of fee payment: 4